baber/WOPTO huggingface dataset:
Patent GB-540545-A (GB)
Title: Improvements in waterproof garments and garment material
IPC: A41D31/02
Filed: 1940-10-28
Abstract: 540,545. Ventilating waterproof garments. SEABROOK, H. (Akt.-Ges. fur Klepper-Sporterzeugnisse). Oct. 28, 1940, No. 15785. [Class 141] [Also in Group VIII] Waterproof garments are ventilated by the use of fabric material composed of a number of vertical columns 2, 5, of staggered slits 1 which open in wear. To the reverse side of the fabric are attached by their bottom edges 8 a number of strips 6, preferably by adhesive and through the whole or part of their length. A vertical strip 9 attached to the top edge of the strips enables them to be adjusted in the manner of the slats of a Venetian blind.
Patent GB-531078-A (GB)
Title: Manufacture of flocculose polymerisation products
IPC: C08F2/18
Filed: 1939-05-26
Abstract: 531,078. Vinyl polymerization products. MORGAN, L. B., MORGAN, W. M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 26, 1939, No. 15790. [Class 2 (iii)] Flocculose polymerization products are prepared by heating, whilst agitating in the presence of a plasticizing agent, a vinyl halide in aqueous admixture with polyacrylic acid, palymethacrylic acid, or a polymeric acid obtained by interpolymerizing acrylic and methacrylic acid with one another or with their esters. Polymerization may be assisted by the action of light, and or a polymerization catalyst such as benzoyl peroxide or other catalyst of the kind referred to in Specification 15271/14, [Class 2 (iii)], and is preferably carried out in a closed vessel, e.g. an autoclave adapted to be shaken cr rotated end over end and fitted with stirring devices. The polymeric acids may be introduced as such into the aqueous medium or may be introduced in the form of water soluble salts, a mineral or organic acid, e.g. acetic acid, being then added prior to polymerization. Specified plasticizing agents are organic phosphoric esters, e.g. tricresyl or triphenyl phosphates, phthalic esters, e.g. di-n-butyl phthalate or dilauryl phthalate, and chlorinated diphenyl. The products may be homogenized, with addition of further amounts of plasticizers into tough rubbery masses such as sheets at temperatures below 120‹C., which masses are suitable for hot extrusion into shaped masses or for hct calendering on to the surface of textile fabrics or the like. In examples : (1) the sodium salt of an interpolymer of methacrylic acid and methylmethacrylate is dissolved in water, acetic acid added and the resulting polymeric acid is mixed with di-n-butyl phthalate, vinyl chloride and benzoyl peroxide and heated in an autoclave which is rotated end over end. The flocculose produced when milled on heated rolls gives a smooth sheet and when further milled together with tricresyl phosphate gives a rubbery product adapted for extrusion into shaped masses or for calendering on to textile fabrics. (2) and (3) an aqueous solution of polymethacrylic acid or polyacrylic acid, benzoyl peroxide, dibutyl phthalate and vinyl chloride is heated in an autoclave and (4) an interpolymer of methacrylic acid and methylmethacrylate and acetic acid are dissolved in water, benzoyl peroxide, dibutyl phthalate or tricresyl phosphate and vinyl chloride added, and the mixture heated in an autoclave.
Patent GB-407222-A (GB)
Title: Improvements in or relating to interphase transformers for rectifier systems
IPC: H02M7/06
Filed: 1933-06-01
Abstract: 407,222. Rectifying alternating current; transformers. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Maslin, A. J. ; 1136, Ridge Street, Sharpsville, Pennsylvania, U.S.A.) June 1, 1933, No. 15823. Convention date, June 1, 1932. [Class 38 (ii).] In a polyphase metal-vapour rectifier system in which the star points of the secondary windings 10, 11 of the transformer feeding the rectifier 6 are interconnected by an interphase transformer 12, the core of the latter is made with portions 26 of reduced cross-section in order to avoid saturation by unbalance of current in the two portions of the winding whilst at the same time permitting the core to be energized by a small exciting current. Fig. 1 shows a two-limbed interphase transformer core for use with a double 3-phase secondary, and Fig. 2 shows a three limbed interphase transformer core for use with a triple-2-phase secondary.
Patent GB-333930-A (GB)
Title: A process of producing designs or forms upon metal or other articles
IPC: G03F7/04
Filed: 1929-05-23
Abstract: 333,930. Miller, F. W. May 23, 1929. Etching.-A process for producing designs &c. on the surface of metal articles consists in coating the whole of the surface of the article with a non- sensitized resist, e.g. of shellac varnish, applying to the resist an exposed but undeveloped photographic transfer, such as a carbon print, washing out the exposed parts of the transfer, and removing the uncovered parts of the resist. The exposed metal is then either etched, e.g. in a bath of ferric chloride, to produce a design in intaglio, or has metal deposited on it to produce a relief, or is first etched and then metal deposited, giving an inlaid design.
Patent GB-594267-A (GB)
Title: Improvements in crates for milk bottles
IPC: B65D85/30
Filed: 1945-06-22
Abstract: 594,267. Bottle crates. MIDLAND COUNTIES DAIRY, Ltd., and TAYLOR, G. E. June 22, 1945, No. 15932. [Class 18] A bottle crate has one or more retainer members that move to a position across the mouth of the compartments when the crate is tilted to one side and thereby prevent outward movement of the bottles. As shown, rods 11, 20, 18 extending across two compartments, are pivoted at their ends, the outer rods 11, 18 being operative in one direction only of their movement and intermediate rods 20 being adapted to swing in either direction. Alternatively, rods extending across the length of the crate may slide in V-shaped slots, which permit them to fall in the direction towards which the crate is tilted, or flaps may be provided which swing and engage the necks of the bottles.
Patent GB-596974-A (GB)
Title: Manufacture of electrical condensers
IPC: H01G4/30
Filed: 1944-08-22
Abstract: 596,974. Condensers. KODAK, Ltd. Aug. 22, 1944, No. 15984. Convention date, Aug. 27, 1943. Drawings to Specification. [Class 37] In methods of making fixed or variable condensers wherein the total capacitance is dependent upon the thickness of the individual dielectric or condenser plates respectively, the average thickness of a group of plates is brought within the tolerance limits for a single standard plate by replacement of one or more of the individual plates by one or more plates of different thickness. The plates are preferably first sorted into groups of " thick " and " thin " plates by means of a thickness gauge, and substantially equal numbers of thick and thin plates are taken and weighed. By substituting appropriate plates on the weighing scales, the total weight is made equal within the tolerance limits to the weight of a plate of standard thickness times the number of plates in the group. In alternative methods, the plates may be weighed individually, or some electrical characteristic of the plates which is proportional to the thickness may be measured individually or collectively, or a method of hydraulic displacement may be employed. The dielectric or condenser plates so averaged are assembled in known manner to form fixed or variable condensers.
Patent GB-1380602-A (GB)
Title: Heterocyclic triglycidyl compounds and a process for their production
IPC: C07D239/22
Filed: 1972-04-06
Abstract: 1380602 Triglycidyl derivatives of heterocyclic compounds and their preparation CIBAGEIGY AG 6 April 1972 [14 April 1971] 15993/72 Heading C2C [Also in Division C3] Compounds of the formula wherein X represents a bivalent alkylene group required for the completion of a 5- or 6-membered heterocyclic ring and R represents hydrogen or a C 1-4  alkyl group, may be obtained by reacting a compound of the formula with epihalohydrin with the elimination of hydrogen halide. The reaction may be effected in the presence of a hydrogen halide acceptor and, optionally, a catalyst such as a quaternary ammonium halide. The radical X may represent a group such as (CH 3 ) 2 C:, (CH 3 ) 2 CH.CH:, (C 2 H 5 )(CH 3 )C:, benzylidene or where n=4 or 5. The products may be reacted with curing agents to produce shaped articles.
Patent GB-739064-A (GB)
Title: Paper feed mechanism for tape printers
Inventor: GISKES JOHANNES HERMANUS
IPC: H04L13/06
Filed: 1952-06-25
Abstract: 739,064. Type-printing telegraphy. STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. June 25, 1952 [June 30, 1951], No. 16027/52. Class 40 (3). [Also in Group XVI] In a type-printing telegraph the exhaust of paper or a paper breakage is detected by a plunger 72 which bears on the underside of the paper through an aperture in a guide channel 52. When there is no paper in the channel 52 the plunger 72, forming part of a lever 70, is raised to the position shown under the pull of a spring 66 and the other end 73 of the lever 70 operates electrical contacts 74.
Patent GB-661000-A (GB)
Title: Improvements in reversible ploughs
IPC: A01B3/18
Filed: 1948-06-15
Abstract: 661,000. Reversible ploughs. CHAMPION. F. June 14, 1949 [June. 15, 1948], No. 16028/48. Class 6(i) A tractor-drawn reversible plough of type having duplicate sets of plough bodies 29, 31 rotatable on a longitudinal shaft 2 is characterized in that the plough is mounted on the triple links at the rear of the tractor and that reversal of the bodies occurs as an incident to the lifting of the plough bodily, the reversal being produced by a single lever 20 pivoted to both the tractor and the plough. The rotatable shaft 2 carries a bevel wheel 3 on its front end meshing with a quadrant 4 on a transverse stub-shaft 5. The quadrant is connected by a link 9 to a crank 8 on a transverse shaft 7. The shaft 7 is rotated through a ratchet-clutch 14, by a gearwheel 12 free on the shaft, the gear-wheel being driven by a vertically-slidable rack 17 linked to the lever 20. The plough frame 1 carries three attachments A, B, C, for the power-lift links of the tractor on which it is mounted. The raising of the plough at the end of a furrow causes relative movement between the plough frame 1 and lever 20 and reverses the plough bodies. The corresponding movement on lowering merely produces slipping of the clutch 14. Manual depth adjustment is provided by depthcontrol wheels 35 mounted on cranked axles 36 and movable by hand-screws 33.
Patent GB-185522-A (GB)
Title: Improvements in presses for moulding articles to be fired in vertical ovens or kilns
IPC: A63B53/00
Filed: 1921-06-10
Abstract: 185,522. Thiele, E. W. June 10, 1921. Cylinder machines ; rotary-mould-table machines.-In a machine for moulding blocks of plastic material, and having moulds arranged at the circumference of a drum 5, with horizontal pairs of plungers 20 actuated successively by stationary cams 27, the moulds are divided by a plate 9, thereby providing a separate chamber for each plunger. Radially moving ejectors 10 actuated by cams are provided for each pair of moulds. The material is fed from a hopper 22 into open cavities or moulds 8 of the drum which continuously rotates and these cavities are closed during the pressing operation by a shutter 17 which is rotated through a quarter of a revolution by projections on the plungers contacting, with projections 25 on the rod 18 of the shutter. The pressing operation being completed the shutter is released and is returned by the counterweight 21. A fixed cam 15 then operates the base of the mould to eject the finished block into an enlargement 30 of the casing and thence through an aperture on to a conveyer belt whence they are conveyed to the kiln.
Patent GB-637976-A (GB)
Title: Clamp raising and lowering means for sewing machines
IPC: D05B3/14
Filed: 1948-06-16
Abstract: 637,976. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). June, 16 1948 No. 16203. [Class 112] Starting and stopping; button-attaching machines. A machine with a work-clamp, a laterally-vibrating reciprocatory needle-bar, and stopgear to bring it to rest at the end of a predetermined cycle has a member mounted for vertical reciprocation in a fixed path at each reciprocation of the needle-bar and means actuated in timed relation to the stop-gear to couple the work-clamp to the member for automatic lifting of the clamp as the machine comes to rest. The clamp is lowered as the machine starts the next sewing cycle ; the coupling means may be put out of action by a hand control. In the machine shown, for attaching flat buttons, the pivoted work-clamp 41 has a fork 42 embracing a stud carried by a spring-depressed vertically-slidable bar 46, which can be lifted by a treadle-actuated lever 51 ; the bar 46 also carries an arm 54 clamped to the lower end of a bar 26 which is vertically slidable in the machine head. The needle-bar reciprocates in a sleeve 23 on an arm 22 mounted on a pivot 19 and oscillated in the usual way to shift the needle-bar laterally between strokes ; a member 27 slidable on the bar 26 and vertically reciprocated by a link 33 from a crank on the main shaft 6 has a fork engaging a collar 29 on the needlebar so as to impart the vertical movements to the latter. The shaft 6 is driven from a stub-shaft 9 carrying the usual stop-gear 12 brought into operation, to stop the machine with the needle raised, by a latch 16 actuated by lugs 17 on the control cam 18 : the shaft 9 revolves at half the speed of the shaft 6 to lessen the shock of stopping. Lugs 65 on the cam, suitably placed relatively to the lugs 17, engage a lever 64 connected to a rod 59 which engages a latch member 58 pivoted at its lower end to the bar 26 and formed with a part adapted to engage over a shoulder on the member 27 ; the rod 59 is spring- pressed to the right-hand position shown, in which the latch 58 is disengaged, and is moved to the engaging position during the last needle stroke before stopping so that as the needle rises to its final position the clamp is lifted. Automatic lifting may be prevented if desired by pushing the rod 59 further to the left, bringing the lever 64 clear of the cam and the latch 58 clear to the left of the member 27, by means of a knob 66, on the rod, which has means for locking it in the left-hand position. Frames. The work arm 1a is of inverted U-section, with a removable sheet metal cover 1b with a spring- pressed hinged end 1c. Specifications 476,764, 545,034 and 624,834 are referred to.
Patent GB-1221103-A (GB)
Title: Articles of manufacture with phototropic coatings or markings
Inventor: DOBELL CURZON
IPC: C09D11/00
Filed: 1968-04-04
Abstract: 1,221,103. Ornamenting. C. DOBELL. 4 April, 1968, No. 16210/68. Headings B6C and B6G. [Also in Divisions C4 and G5] A surface carries a continuous or interrupted layer of a phototropic ink, which changes colour when it is exposed to light, so that when the surface is uncovered and viewed the ink shows one colour initially and another later. Either the first or second colour may match a non-phototropic background, so that either printed intelligence is invisible initially and becomes visible during viewing or is visible initially and fades. Several phototropic inks, requiring different periods of time to accomplish their colour changes, may be used together so that images appear in succession. When the surface is covered again the phototropic ink reverts to its original colour. Inks usable may incorporate SrS, with trace amounts of Mn and Bi carbonate, or alternatively BaTiO 3  with Fe<SP>111</SP> or CaCO 3  with Mn, Bi and S. In each case the materials are fired, at temperatures between 900‹ and 1100‹ C., then are dispersed in a carrier which may itself be an ink.
Patent GB-881547-A (GB)
Title: Improvements in or relating to fluid sealing joints
IPC: F16J15/32
Filed: 1959-05-12
Abstract: 881,547. Piston packings. SOC. DES GRANDS TRAVAUX DE MAISEILLE, and BEGHI, R. May 12, 1959 [May 12, 1958], No. 16290/59. Class 122 (1). A seal against a high-pressure fluid acting on a main piston 7 reciprocable in a cylinder 8 comprises an auxiliary piston 3 arranged in front of the main piston and subjected on its front face 9 to the fluid pressure which is transmitted through a rear face 11 to a resilient block 2, the latter being mounted within a cup 1 rigidly secured to the piston 7 and having a flexible wall 24 pressed into sealing contact with the cylinder by the expansion of the resilient block. As shown applied to the piston 7 of an hydraulic jack, jack, the resilient block 2, which may be of a synthetic material or alloy and formed in one piece, as shown, or in several segments or laminations, is located between the auxiliary piston 3, and the cup 1, the latter being sealed at low pressures with the cylinder wall by a sealing ring 21 located in a groove 22 formed in the cup; in an alternative arrangement to effect the low-pressure sealing, the ring 21 is dispensed with and the wall 24 of the cup initially urged into contact with the cylinder by a screw arranged to compress the block 2 between the auxiliary piston and the cup. In the modification shown in Fig. 3, the auxiliary piston 6 is in the form of a ring having a T-shaped cross-section and acts against two resilient rings 5 located between the piston and a U-sectioned cup 18.
Patent GB-386871-A (GB)
Title: Improvements in trouser supporting means
IPC: A41F9/02
Filed: 1932-06-09
Abstract: 386,871. Trouser waistbands. SIMPSON, A., 92, Stoke Newington Road, London. June 9, 1932, No. 16347. [Class 141.] Belt substitutes for trousers comprise waistbands made with elastic webbing. As shown, the webbing B is attached at its ends externally across the back of the waistband in such a manner that the length of material of the waistband bridged by the webbing is greater in length than the webbing itself. The webbing may be provided at the sides of the waistband and may be sheathed. Patches of sponge rubber are attached to the inside of the waistband to grip the wearer's shirt.
Patent GB-163680-A (GB)
Abstract: 163,680. Morse Instrument Co., Inc., (Assignees of Morse, R. V.). May 10, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Methods of sighting; cartridge belts.-Certain projectiles of the stream issuing from a machine gun are arranged to burst to give a visual indication of the direction of the stream and facilitate the aim. The effect is obtained by loading the ammunition belt 4, Fig. 7, at regular intervals with bursting ammunition 5 separated by rounds 10 of ordinary ammunition. Fig. 8 shows suitable bursting ammunition, the projectile 6 of which has a bursting charge 11 with a time fuze 12 ignited by the propellant charge. Fig. 2 shows a belt loaded with bursting ammunition of graded fuze times to give indications at a number of points along the stream. The number of bursting points along the stream may be increased by using a two or three barrel gun, the grading of fuze times extending from one belt to another.
Patent GB-568777-A (GB)
Title: Improvements in electric cable systems
IPC: H01B7/295
Filed: 1943-10-06
Abstract: 568,777. Fireextinguishing. OKONITECALLENDER CABLE CO., Inc. Oct. 6, 1943, No. 16377. Convention date, Nov. 25, 1942. [Class 47 (ii)] One or more tubes containing a fire-extinguishing fluid medium are laid in or along the outside of a conduit or pipe for electric cables so that in the event of a fire, the tubes are ruptured and the medium is released. A tube 8 containing fire extinguishing medium, such as carbon tetrachloride, may be placed in one or more ducts 4 of a block 2 of suitable material through which the cables 6 are drawn, the tube being made of a metal of low melting point to fuse in the event of a fire, caused, for example, by a short circuit. If desired, the tube 8 may bo placed in a duct 4 with the cable 6. Alternatively, the tube 8 may contain fire-extinguishing medium under a pressure approximating to the supra-atmospheric pressure of insulating fluid in a pipe-line containing the cables, so as to burst in the event of fracture of the pipe-lino by a fire.
Patent GB-1525914-A (GB)
Title: Charging valve for a fluid pressure
IPC: F15B1/027
Filed: 1977-04-20
Abstract: 1525914 Fluid-pressure servomotors SOC ANON D B A 20 April 1977 [7 May 1976]  16441/77 Heading G3P [Also in Division B7] A pump 20 is connected through a valve 30 to an open-centre power-steering system 26 until the pressure in an accumulator 24 falls below a predetermined value when a pilot valve 64 is opened by a spring 66 to open a path through a restrictor 68 into a control chamber 40 to close the valve 30, reduced flow to the steering system being permitted through an orifice 86. To ensure that closure of the valve 30 does not cause an abrupt change in pressure, the chamber 40 is bounded by a further spring-loaded piston and has a permanent connection with a reservoir 22 through a restrictor 76. The accumulator 24 may supply a braking system and is charged through a valve 82.
Patent GB-1030393-A (GB)
Title: Process for peptising polychloroprene latex
Inventor: JENKINS PHILIP ALDWYN
IPC: C08C19/08
Filed: 1963-04-26
Abstract: A sulphur-modified polychloroprene latex is peptized with a peptizing agent in the presence of an oxidation product of a substituted or unsubstituted thiourea or isothiourea or a mixture thereof.  The oxidation product may be present as its ammonium or alkali metal salt; it may be thiourea dioxide or the oxidation product of N-N1-dibutyl thiourea.  The peptizing agent may be a mixture of tetraethyl thiruram disulphide and dimethyl ammonium dimethyl dithiocarbamate.
Patent GB-1167293-A (GB)
Title: Compositions for Treating Aluminium Surfaces
IPC: C23G1/24
Filed: 1968-04-05
Abstract: 1,167,293. Cleaning aluminium. DIVERSEY DEVELOPMENT Ltd. April 5, 1968 [May 22, 1967], No.16505/68. Heading C7E. A solution for desmutting aluminium comprises (% by weight):- ferric sulphate 50 to 75, alkali metal bi-sulphate 5 to 30, alkali metal nitrate 5 to 24, alkali metal silicofluoride 1 to 8. Up to 5% of a surfactant e. g. aliphatic polyether, dodecyl benzene sulphonic acid, iso-octyl phenyl polyethoxy ethanol, and ethylene glycol ethyl ether may be added.
Patent GB-1413712-A (GB)
Title: Freeze drying method for preparing radiation source material
IPC: F26B5/06
Filed: 1973-04-06
Abstract: 1413712 Freeze-drying UNITED STATES ATOMIC ENERGY COMMISSION 6 April 1973 [12 May 1972] 16505/73 Heading F4G [Also in Division G6] In preparing radiation source material (see Division G6), a solution of dissociable salts of a noble metal (e.g. Pd) and a radioisotope (e.g. Cf 252) is atomized by means of a stream of air or an inert gas, into a cooled vessel 13, where the solvent and salts are frozen at 41 on to the walls of the vessel. By raising the temperature and applying vacuum, the solvent is sublimed into vessel 17, leaving hydrated salt crystals in vessel 13. By further heating the vessel 13, the hydrated salt is dried, and is then decomposed by introducing a He-H 2  gas mixture, leaving a residue of elemental noble metal and refractory radio-active compound.